Improvement in locomotive smoke-stacks



J. V. BISHOP.

Locomotive Smoke-Stacks.

No. 144,884. I PatentedNov.25,1873.

D o l Wim s.

AMP/107011770080: (a/l. X lasso/WES PRUCFSS) try UNITED STATES PATENT OFFICE.

JOHN V. BISHOP, OF ATLANTA, GEORGIA.

IMPRQVEMENT IN LOCOMOTIVE SMOKE STACKS.

Specification forming part of Letters Patent No. 144,884, dated November 25,1873; application filed July 26, 1873.

To all whom it may concern:

Be it known that I, JOHN V. BISHOP, of Atlanta, in the county of Fulton and State of Georgia, have invented a new and Improved Locomotive Smoke-Stack, of which the follow- B, to sustain the wear of the hard particles of coal which are projected against it in being deflected from the direct escape. It is made removable-for the ready substitution of another when worn out. The cover 0 has the ordinary short discharge-tube D extending below to conduct the smoke from the interior to the holes E in its sides, with which I arrange short tubes F, to receive'the cinders bounding off from the top of the stack toward the dischargepassages. and prevent them from being carried through the holes with the currents of smoke and steam, and so allowing the holes to be made much larger than they otherwise could be, and prevent the escape of the cinders. The tube D extends to a point as much above the closed top G of smoke-pipe H as it will do to make the width of the space I for guarding against the escape of the cinders. In the space between the top G and the upper end of pipe H I arrange the vertical curved tangential plates J for imparting a spiral motion to the escaping vapors, which I find, also, tends to increasethe draft by preventing them from being thrown directly against the wall of the stack, by which they are abruptly stopped whereas, by being set into a spiral course they are not materially obstructed by the deflection, which is necessary to prevent the escape of the cinders. With this aid, in addition to the larger area of the openings E, which I obtain by the use of tubes F, I expect to largely increase the draft, and correspondingly facilitate the production of steam. The openingsL at the base of the smoke-stack are for the removal of the cinders from time to time as they accumulate.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination, with deflectors J G, of the open tubes F F, arranged as described, in the side of the ordinary discharge-tube D of a smokestack, substantially as described.

JOHN V. BISHOP.

Witnesses:

JAMES D. OoLLINs, JETHRO W. MANNING. 

